Is it possible to open a VI using an older version of LabVIEW, and if so how?

As stated in the title.  I have installed all the run-times from lv6 to lv8.6, but cannot open any VIs that have been compiled in a more recent version of LabVIEW.  We run (on different computers) lv5, lv6.1, and lv8.5.  Upgrading some of the older machines is not possible since they cannot handle the required OS.
Is there any way to open a VI created/compiled in a higher version of LabVIEW?  This is proving to be a major sticking point with us and our ability to transfer VIs between computers.
James
Never say "Oops." Always say "Ah, interesting!"

Hi James,
I was able to use VI server to invoke LV 6.1 VI's using LV 7.0 without issue.
After discovering this and mentioning it in a post somewhere, Rolf Kalbermatter indicated that was expected. and I should not be suprised.
So....
Vi Server may help you.
James Mamakos wrote:
Is there a separate place for me to post VIs to be converted?  What's a ballpark figure for the maximum file size i could put on to be converted?
Do you know if the LabVIEW developers can/will create a way to overcome this problem rather than having to convert a VI through all the intermediate versions?
To the best of knowledge NO.
For each versino of LV there isw code included that runs behind the scenes when you open a VI from an earleir version which replaces old functions with the new versions. This is called Mutation code. To accomplish its task it has to know everything that changed between version X and Y. Since it is possible to baby step the versions up and the number of user that jump multiple major versions is small, I don't think any effort will go into that work.
THe largest attachment I have managed to upload was 3 or 4 Meg.
Just trying to help,
Ben
Message Edited by Ben on 04-28-2009 08:58 AM
Ben Rayner
I am currently active on.. MainStream Preppers
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